| 摘要 |
PURPOSE:To obtain a photopolymerizable composition having high sensitivity and superior shelf stability by combining a photopolymerizable monomer having at least one ethylenic unsatd. group with prescribed photopolymn. initiators and by further adding a linear org. polymer as required. CONSTITUTION:A photopolymerizable monomer having at least one ethylenic unsatd. group is combined with at least one kind of compound represented by formula I, II or III and a compound represented by formula IV, as photopolymn. initiators and an org. amine compound is further added as required to obtain a photopolymerizable composition. In the formulae I-IV, each of R1 and R2 is alkyl, R1 and R2 may bond to each other to form alkylene, R3 is H or acyl, X1 is -OR5 or the like, R5 is H, alkyl or alkenyl, Y1 is H or the like, Y2 is H, halogen or nitro, X2 is -O-R8-O- or the like, R8 is alkylene, each of Ar and Ar' is aryl, X is an anion, and n is the valence of X. |
